<template>
    <div>
      <!-- 面包屑导航 -->
      <el-breadcrumb separator-class="el-icon-arrow-right">
  <el-breadcrumb-item :to="{ path: '/welcome' }">首页</el-breadcrumb-item>
  <el-breadcrumb-item>用户管理</el-breadcrumb-item>
  <el-breadcrumb-item>用户列表</el-breadcrumb-item>
</el-breadcrumb>
<!-- 卡片 -->
<el-card>
  <el-row :gutter="20">
      <el-col :span='7'>
            <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear='getUserList'>
    <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
  </el-input>
      </el-col>
      <el-col :span='4'>
          <el-button type='primary' @click="addDialogVisible = true">添加用户</el-button>
      </el-col>
  </el-row>
  <!-- 用户列表去区 -->
  <el-table :data='userList' border stripe>
    <el-table-column type='index' ></el-table-column>
      <el-table-column label="姓名" prop="username"></el-table-column>
      <el-table-column label="邮箱" prop="email"></el-table-column>
      <el-table-column label="电话" prop="mobile"></el-table-column>
      <el-table-column label="角色" prop="role_name"></el-table-column>
      <el-table-column label="状态" prop="mg_state">
        <template slot-scope= 'scope'>
            <el-switch v-model="scope.row.mg_state" @change="userStateChange(scope.row)">
</el-switch>
        </template>
      </el-table-column>
      <el-table-column label="操作" width="170px" >
        <!-- 用来屏蔽scope  -->
        <!-- eslint-disable-next-line -->
        <template slot-scope="scope">
          <!-- 修改 -->
           <el-button type="primary" icon="el-icon-edit" circle size="mini" @click= "showEditDialog(scope.row.id)"></el-button>
           <!-- 删除 -->
           <el-button type="danger" icon="el-icon-delete" circle size="mini" @click= "removeUserById(scope.row.id)"></el-button>
           <!-- 分配 -->
           <el-tooltip effect="dark" content="分配角色" placement="top" :enterable='false'>
    <el-button type="warning" icon="el-icon-setting" circle size="mini" @click="serRole(scope.row)"></el-button>
    </el-tooltip>
        </template>
      </el-table-column>
  </el-table>
  <!-- 分页 -->
  <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum"
      :page-sizes="[1, 2, 5, 10]"
      :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total">
    </el-pagination>
</el-card>
<!-- 添加用户的对话框 -->
<el-dialog
  title="添加用户"
  :visible.sync="addDialogVisible"
  width="50%"
  @close="addDialogClosed()"
>
  <!-- 内容主题区域 -->
  <el-form :model= "addForm" :rules= "addFormRules" ref="addFormRef" label-width="100px">
  <el-form-item label="用户名" prop="username">
    <el-input v-model="addForm.username"></el-input>
  </el-form-item>
   <el-form-item label="密码" prop="password">
    <el-input v-model="addForm.password"></el-input>
  </el-form-item>
   <el-form-item label="电子邮件" prop="email">
    <el-input v-model="addForm.email"></el-input>
  </el-form-item>
   <el-form-item label="手机号" prop="mobile">
    <el-input v-model="addForm.mobile"></el-input>
  </el-form-item>
  </el-form>
  <!-- 底部区域 -->
  <span slot="footer" class="dialog-footer">
    <el-button @click="addDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
  </span>
</el-dialog>
<!-- 修改用户的对话框  -->
<el-dialog
  title="修改"
  :visible.sync= "editDialogVisible"
  width="30%"
  @close= 'editDialogClosed'
  >
  <el-form :model= "editForm" :rules= "editFormRules" ref="editFormRef" label-width="100px">
  <el-form-item label="用户名">
    <el-input v-model= "editForm.username" disabled></el-input>
  </el-form-item>
   <el-form-item label="邮箱" prop="email">
    <el-input v-model= "editForm.email"></el-input>
  </el-form-item>
   <el-form-item label="电话号码" prop="mobile">
    <el-input v-model= "editForm.mobile"></el-input>
  </el-form-item>
  </el-form>
  <span slot="footer" class="dialog-footer">
    <el-button @click= "editDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click= "editUseInfo()">确 定</el-button>
  </span>
</el-dialog>
<!-- 分配角色的对话 -->
<el-dialog
  title="分配角色"
  :visible.sync="setRoleDialogVisible"
  width="30%"
  @close='setRoleDialogClosed'
  >
  <div>
    <p>当前的用户：{{userInfo.username}}</p>
    <p>当前的角色：{{userInfo.role_name}}</p>
    <p>分配新角色：
  <el-select v-model= "selectedRoleId" placeholder="请选择">
    <el-option
      v-for="item in rolesList"
      :key="item.id"
      :label="item.roleName"
      :value="item.id">
    </el-option>
  </el-select>
        </p>
      </div>
       <span slot="footer" class="dialog-footer">
    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
       </span>
  </el-dialog>
    </div>
</template>

<script>
export default {
  data() {
    // 验证邮箱的规则
    var checkEmail = (res, value, cd) => {
      // 验证邮箱的表达
      const regEmail = /^([a-zA-Z0-9])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
      if (regEmail.test(value)) {
        // 合法邮箱
        return cd()
      }
      cd(new Error('请输入合法邮箱'))
    }
    // 验证手机号的规则
    var checkMobile = (res, value, cd) => { // eslint-disable-line no-unused-vars
      const regMobile = /^1[3|4|5|7|8][0-9]{9}$/
      if (regMobile.test(value)) {
        // 合法手机号
        return cd()
      }
      cd(new Error('请输入合法手机号'))
    }
    return {
      // 获取用户列表的参数
      queryInfo: {
        query: '',
        // 当前的页数
        pagenum: 1,
        // 当前每页显示多少条数据
        pagesize: 5
      },
      userList: [],
      total: 0,
      // 控制修改用户对话框的显示隐藏
      addDialogVisible: false,
      // 添加表单的数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 添加表单的验证规则对象
      addFormRules: {
        username: [
          {
            required: true,
            message: '请输入用户名',
            tirgger: 'blur'
          },
          {
            min: 3,
            max: 10,
            message: '用户名的长度在3~10个字符之间',
            trigger: 'blur'
          }
        ],
        password: [
          {
            required: true,
            message: '请输入密码',
            tirgger: 'blur'
          },
          {
            min: 3,
            max: 10,
            message: '密码的长度在3~10个字符之间',
            trigger: 'blur'
          }
        ],
        email: [
          {
            required: true,
            message: '请输入邮箱',
            tirgger: 'blur'
          },
          {
            validator: checkEmail,
            trigger: 'blur'
          }
        ],
        mobile: [
          {
            required: true,
            message: '请输入手机号',
            tirgger: 'blur'
          },
          {
            validator: checkMobile,
            trigger: 'blur'
          }
        ]
      },
      // 控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      // 查询到的用户信息对象
      editForm: {},
      // 修改表单的验证规则对象
      editFormRules: {
        email: [
          {
            required: true,
            message: '请输入邮箱',
            tirgger: 'blur'
          },
          {
            validator: checkEmail,
            trigger: 'blur'
          }
        ],
        mobile: [
          {
            required: true,
            message: '请输入邮箱',
            tirgger: 'blur'
          },
          {
            validator: checkMobile,
            trigger: 'blur'
          }
        ]
      },
      // 控制角色对话框的显示与隐藏
      setRoleDialogVisible: false,
      // 需要被分配角色的用户信息·
      userInfo: {},
      // 所有角色数据的列表
      rolesList: [],
      // 已选择的角色ID
      selectedRoleId: ''
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    async getUserList() {
    //  用来 awiat 后可以得到一个数据对象 解构赋值出data 属性 然后在 重新赋值 res
      const { data: res } = await this.$http.get('users', { params: this.queryInfo })
      if (res.meta.status !== 200) {
        return this.$message.console.error('获取用户列表失败')
      }
      this.userList = res.data.users
      this.total = res.data.total
      console.log(res.data)
    },
    // 监听 pagesize 改变的事件
    handleSizeChange(newSize) {
      console.log(newSize)
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听 页码值改变
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听switch 开关的改变
    async userStateChange(userinfo) {
      console.log(userinfo)
      // 发起请求
      const { data: res } = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新用户失败')
      }
      this.$message.success('更新用户成功')
    },
    // 监听添加用户对话框的关闭事件
    addDialogClosed() {
      this.$refs.addFormRef.resetFields()
    },
    // 点击按钮，添加新用户 进行校验
    addUser() {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) {
          return
        }
        // 可以发起添加用户的网络请求
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) {
          this.$message.error('添加用户失败！')
        }
        this.$message.success('添加用户成功！')
        // 隐藏添加用户的对话框
        this.addDialogVisible = false
        // 重新获取用户列表数据
        this.getUserList()
      })
    },
    // 展示编辑用户的对话框
    async showEditDialog(id) {
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败！')
      }
      this.editForm = res.data
      this.editDialogVisible = true
    },
    // 监听修改用户对话框的关闭事件
    editDialogClosed() {
      // 表单的重置
      this.$refs.editFormRef.resetFields()
    },
    // 修改用户信息 并提交
    editUseInfo() {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) {
          return
        }
        // 发起修改用户的信息的数据请求
        const { data: res } = await this.$http.put('users/' +
        this.editForm.id, {
          email: this.editForm.email,
          mobile: this.editForm.mobile
        })
        if (res.meta.status !== 200) {
          return this.$message.error('更新用户信息失败')
        }
        // 关闭对话框
        this.editDialogVisible = false
        // 刷新数据列表
        this.getUserList()
        // 提示修改成功
        this.$message.success('更新用户信息成功! ')
      })
    },
    // 根据Id删除对应的用户信息
    async removeUserById(id) {
      // 弹框询问用户是否删除数据 cancel
      const confirmResult = await this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => {
        return err
      })
      // 如果用户点击确定是 字符串 confirm;
      // 如果用户取消了删除 字符串
      if (confirmResult !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('删除用户失败！')
      }
      this.$message.success('删除用户失败！ ')
      this.getUserList()
    },
    // 展示分配角色的对话框
    async serRole(userInfo) {
      this.userInfo = userInfo
      // 在展示对话框之前获取所有的角色列表
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色失败')
      }
      this.rolesList = res.data
      this.setRoleDialogVisible = true
    },
    // 点击按钮分配角色
    async saveRoleInfo() {
      if (!this.selectedRoleId) {
        return this.$message.error('请选择要分配的角色')
      }
      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.selectedRoleId })
      console.log(res)
      if (res.meta.status !== 200) {
        return this.$message.error('更新角色失败')
      }
      this.$message.success('更新角色成功！')
      this.getUserList()
      this.setRoleDialogVisible = false
    },
    // 监听分配角色对话框的关闭事件
    setRoleDialogClosed() {
      this.selectedRoleId = ''
      this.userInfo = {}
    }
  }
}
</script>

<style lang="less" scoped>

</style>
